Dispensing-pump.



M.A H. PET'IGGR.

DISPENSING BUMP. APPLICATION FILED APR.11, 1906.

Patented June l,

rlli/g: i.

/l Il l/ /ll/ 1/ MORRIS H. PETIGOR, Ol" NEW YORK, N. Y.

no. eeeigeci.

pecfioation ofV Letters Fatent.

Patented fune Ll, 1909.

Application 'filed April 11, 1906. Serial No. 311,111.

To all whom it may concern,-

,the city, county-alnd State of New York,`

have inventedttcertain new and useful lmprovei'nents in Dispensing-Pumps, ot' which the following is a specification.

This invention relates to that class of pumps which are more particularly designed and adapted for dispensing soda water Syrups and the. like, and of which the device illustreted in the Letters Patent No. 778,757 granted December 27, 1904 to Tvl/'illiain J. McCahill is a type, and the ohject of the invention is to provide a dispensing pump of this general character of a simple andy comparatively inexpensive nature and of a stron and compact construction having cer tain :teatures of improvement which add to the durability of the device and lessen the liability of breakage and derangement of the parts and which render the improved pump capable oi more convenient and etiective use.

The invention coi'isists -in certain novel lfeatures oi' the construction, und combine-- tions and arrangements of the several parts of the improved dispensing pump, whereby certain important advantages orc attained "and the device is rendered simpler, less pensive and otherwise het-ter adapted and more convenient :tor use, all as will he hereinafter fully set forth.

The novel features of the invention will o o carefully deiuedin the claims.v

ln thc accompanying drawings which .serve to illustrate my invention-Figure 1 is a vertical section taken axially through the improved pump in ther plane indicated by the line awa in Fie'. Fig. 2 is a horizontal section takcnthrough' the actuating stem of the device in the plane indicated by the line l li-Z) in Fig-11"; "F ig. is a sectional view taken through the actuating stein of the delvice in a 'plane below that oi? Fig. 2, and

showingY certain features of construction ot tlienifeans for connecting the lower end of the retracting springt() said stem.; ll 4 is a sectional view taken transversely through the syrup receptacle and actuating stem in the plane indicated by line in Figli; Fig. -sectionelview taken horizontally through the barrel or cylinder of f the pump in the plane indicated by the line fll in Fig. l, and Fig. 6 is an enlarged fragmentary perspective view showing the construction oi one. ot' the clips for dctacln ably connecting` the. lower end of the retracting spring` to the actuating stein.

ln these views 'l represents a suitable. ar or receptacle for containing the syrup or other liquid to loe dispensed and Q represents a counter, shelf or like support arranged above said receptacle. and having an Opern ing 3, affording' access to the interior otn the 'receptacle and through which theiniproved pumping device supported on the shelf or counter 2 is permitted to depend into the syrup in the receptacle for use in dispensing such syrup.

l represents a plate ot' thin metal secured upon the shelf or support S loy means of screws or the like and having an upturned circular iiauge 5 surroimdingr the opening 3 in the shelf or support, while G represents a. capA having a pendent marginal portion iitted over the circular Yliansge in such a inaunerthat the cap, whenv `in place, serves a, closure for the opening 3 inthe shell or support. A detachable connection is provided for holding the cap securely in place over the opening hut permittingI ready rcmoval ot' said cap whenever desired, end as herein shown, this detachable connect-ion comprises a pin 7 projectingfrom 'the flange 5 end adapted 'for engagement in the herr zontal part oit a bayonet slot 8 ln ihe pendent marginal portion of the cap to hold the cap securely in place when the same is turned.

The cap 6 has a central opening produced in its topfto receive n. guide sleeve Q provided with a, flange 10 rested on lhtop suritece of the cap, the lower end of stllil sleeve being externally screw-threaided to receive a nut il which is engaged. against the under surface of the cap in such a way as to aord a secure connection between the guide sleeve and said cap (l.

' l2 :represents l'lie tubular rod or stein of the pump, the upper end whereof is iittted within a guide stem lei connected with the head ot' said rod or stein which-latter is formed with a part 1G adapted to be conveniently pressed upon h'y the attendant 1for depressing said rod or stem and operatingr the'punip, and said head l5 is also provided ivith a laterallyvv directed discharge nozzle or spout 17 provided with a liquid whereon 'screw threaded collar or enlargement 1 9,

discharge of the syrup when the pump is 1 operate The metallic seen in Fie'. 2, the a )e1-ture or' the uide sleeve in 'which it is engaged being similarly termed so that said Ouide stem is Guided to e e play vertically thrtugh the guide sleeve 9 i ot' the cap when the head 15 is depressed `tor operating the pump as ivill be hereinafter explained.

According to the present invention the tubular pump rod or stem 12 is formed from hard rubber or similar inert material so as also formed from inert material so as to be unatl'ected by acid Syrups, and which is made capable of adjustment in the direction of the length of said pump rod or stem '12 by reasonV of its threaded connectign therewith.

The vcollar or enlargement 19 has an annular seat or recess 2O produced in its upper surface, encircling the pump rod or stem. 12, the raised edge portion of said collar or enlargement serving to receive a plurality ofv clips 21 which are pivotally held thereon at 22 and have free end portions adapted, when the clips aie moved pivotally in one direction, to be extended inwardly beyond the outer margins ot* the seat or recess 2O as .shown in Fig. 3 and when the clips are reversely moved, to be Withdrawn trom their positions over-hanging the seat or recess, as shown clearly in Fig. 6.

L55 represents a spiral spring of a diameter adapted to loosely encircle the pump rod or stem 12, its upper end being connected with the nut 11 upon the lower end of the guide sleeve 10. so as to be supported thereby, while its lower end is adapted to be engaged in the seat or recess v2O in the upper surface of the collar or enlargement 19, in such a Way that the clips 21 may thereafter be pivotally moved to cause their tree ends to engage with the lcwermost Whirls ot the .spring to ettectively lock the pump rod or stem 12. whereon the collar or enlargement 2() is held. to the lower end ot said spring while theconnection ot the parts thereby attorded capable of being readily detached when desired.

2i rei'nesculs a pump barrel or cylinder arranged at the base of the receptacle 1 and ns ou e1 em in the gui e s eeve o ie cap (3 and is made polygonal 1n cross section, as

G, is thereby x l l l 1 l l l l l l l l l l l l l l l 4 l l l, l l l l 28 upon its lower side having at its upper part a central integral upwardly directed boss or bearing 25 of reduced diameter, through which the lower end ot' the pump rod or stem 12 is passed and adapted for vertical slidinv movement, the lower extremity of said rod or stem 12 carrying a piston 26 also of hard rubber by preference, and of a die-` '-.ete adapted to lit snugly and play verticali y within the barrel or cylinder in a Well known Way.

2T represents the bottom of the pump rel or cylinder having bara centralprojection for Contact upon the bottom of the receptacle 1 as shown in Fig. 1 whereby the outer portions of said bottom 27 are held elevated so as' to be out of contact With the bottom of the receptacle, and said outer portions oit the bottom 27 have ports 29 pierced through them for the admission ot' the syrup from the receptacle 1 into the chamber of the pump barrel or cyl-I inder 2st below the piston 26. A flap valve 30 of rubber or the like is held by means of a clip 31 upon the upper face of the bottom 27 Within theehamber of the barrel or cylinder so as to control the ports 29 against the escape of the syrup when the piston is depressed in the operation of the pump, and the upper end of the barrel or' cylinder 24 has a series of ports 32 surrounding the central reduced bearing 25 and adapted for the tree entry and escape of syrup at the upper part of the cylinder or barrel above the piston so thatl the operation of the pump is facilitated.

ln the operation of the improved pump the piston 26 being connected yvith the rod or stem 12 is normally upheld by the tension of spring 23 so as to stand, as

shown in `Fig. 1, at. the upper part of the pump barrel or cylinder which latter depends by gravity and rests with the projection 2S of its bottom in Contact with the bottom of the receptacle 1, in which position or" the parts the valve 30 offers no resistance to the entry of the syrup through the ports 29 wherefore the chamber ot the barrel 2-1 below said piston is illed With the syrup.

Pressure being applied by the attendant upon the head 14 to depress the pump rod or stem 12` the spring 23 is distended and placed under tension and the piston 26 is pressed downwardly in the barrel 24:, sealing the valve 30 and causing the syrup contained in the barrel below the piston to iow up through the bore of the stem or rod 12 to the discharge nozzle or spout 17 whence it is discharged into the glass held by the `attendant. The head 14 being released, the

jeeeeei l y e;

` tionof the fruit Syrups, the acids of which are often quite active, it is desirable toform thebarrel or cylinder 24 of the pump from glass, since this material is at once inex- 'pensive and `unaitected by the acid Syrups, 1 hut-I have found that a very considerable 'pressure is often imposed upon the bottom 'of the Said cylinder or barrel by the attendqant in forcing down the head lit, causing thepiston2,6y to strike so forcibly upon the ybottom ofthe barrel or cylinder as to shat- .ter the same so as to render the device unfit fondsenv ln dider to overcome this defect- I y rtorni thebottom 2'? lof the pump barrel or 1-5 cylinder separately from the body portion 24' thereof, said body portion being formed from glass while the bottom. 27 is formed from hard rubber by preference, since l. have found this material, while being more expensive to be better adapted to withstand y,the strain imposed upon the bottom in the operation of the device as above described. kgflhe said bottom 2,7 is held upon the body ortion'oi the barrel or cylinder by means 25 of a fla-nge around the edge of the bottom and which has screwk connection with the bodyxportion so as to be capable of being *t :quickly and conveniently detached there n the valve for repairs and cleaning by merelyn 4t) removing the bottom 27 from the cylinder or barrel and without disconnecting the pisp ton therefrom. t

Having thus described myinvention, I.

' Cla-lult,-

' l; A dispensing pump comprising a tuy, bular pump rod, a supi'virted part having a guide through which Athe ump-rod is passed 'n for longitudinal movement, a. spring having connection with said supported part and extended parallel 'with the pump-rod and va detachable connection between the lower endlot the spring and said pump-rod.

2. dispensing pump, having a pumpfrodr which is screwthreaded at its upper f lilplart, a `spring-support 18, screwed on said trod-,a spring 17 on said rod, and clips 19 ivotally l mounted on the ,support and enf gaging the -whirls of the spring.

3. A dispensing pump, having a fixed,

, f flanged plate 2O provided with one element y of abayonet-astening, an apertured cap 22, fitting on the flange of said plate and provided with the other element of said fastening, a anged, ,screwthreaded sleeve' la, in

7 Gtrthe"aperture of said cap, the flange-thereonvv zlurving means for detachable connection connection with the lower end ot' said spring. 100

bearing on the cap, a clamping sleeve 16, screwed onto the sleeve liunder said cap, the said sleeves clamping the cap between them, the pump-rod, the head 13, provided with a ,stein which plays inthe sleeve lit, the pump-rod secured removably to the said stem, the piston and the pump-barrel.

i. A dispensing pump comprising a tubular pump-rod, a supported part having a guide through which the pump-rod is passed tor longitudinal movement, a spring coiled around the pump rod and having connection with said supported part at its upper end and a device carried by the pump-rod and o with the lower end of said spring.

A dispensing pump comprising a tubular pump-rod, a supported part having a guide through which the pump-rod is passed `l'or longitudinal movement, a spring coiled 85 around the pumprod and having connec-v tion at its-upper end with said supported part, a collar carried by the pump-rod and a plurality ot devices' pivotally held. by said collar and adapted to be moved in and out of engagement with Nthe coils of said spring and affording a detachable connection between the lower end of said spring and the pumprod.

6. A. dispensing pump comprising a sup 95 port, a part detachably heldl thereto and provided with a central guide, a tubular pump-rod extended through the guide ot said part and below said support and adapted forendwise movement, andan extensible spring the upper end ot' which hasconncc tion with the supported part and the lower end ot which has connection with said pump rod. l'

7. A dispensingpump comprising a support, a part dtacluibly held thereon and provided with a central. guide, ay tubular pump-rod extended through said guide below said support and adapted for endwisc movement, an extensible spring held at its upper end to the supported part and encircling the pump-rod and a detachable connection between the lower end of the spring and said pump-rod. v

S. A dispensing pump comprising a tubular pump rod, a supported part having a guide Vthrough which the pump rod is passed lfor longitudinal movement, a, spring connected at itsupper end with said supported part, and a device adjustable lengthwise upon the pump rodV` and having` connection'witl'i the lower end of said spring.

9. A dispensing pump comprising a tubular pump rod, a supported part lia-ving a guide through which the pump rod is passed for longitudinal movement, aspring con.- neoted at its upper end with said supported part, and a device adjustable lengthwise upon the pump rod and having detachable iis lG. A dispensing pump comprising n iuhulur pump rod, u supported puriv having n guide Jchrough which lille pump rod is passed for longitudinal movement, :i collar held lo move with llhe pump rod and having;` :in nnuular recess surrounr'lingf the rod,lund :i spring coiled laround the pump rod and having :it one endsupporling connection with the supported part :md having` iis opposite end engaged in the annular recess in said collar.

ll. A dispensing pump Comprising' a tubular pump rod, n supported part having n guide through which the pump rod is passed for longitudinal movement, u Collar .mounted on the pump rod and having sin zumulur recess surrounding; suid rod, n, spring coiled around the pump rod und having at one end supporting connection with said supported part und having its opposite end engaged in the recess in the eollnr and i detachable fastening for holding the spring to said collar. v

l2. A dispensing pump comprising a tubular pump rod, a. supported part having :i guide hrougli which the pump rod is passed for longitudinal movement, aolla:4 adjustable lengthwise upon the pump rod und. havin;` an annular recess, Surrounding said rod, :i spring coiled around the pump rod und having ai one end supportinoj connection with said supported part and having its opposite end engaged in the 'recess in the' collar and a detachable fastening for holding; the spring lo said collar.

ln Witness whereof I have hereunto signed my name lhis 10th day of April 1906, in the presence of two subscribing Witnesses. MORRS H. PETGOR. litnesses WILLIAM J, FIRTH, H. G. Hosn. 

